Silence Excessive Messages

Avahi at 0.6.31 spews messages such as:

Mar 10 08:00:28 srv avahi-daemon[35097]: Invalid response packet from host 192.168.32.1.

which are mainly due to Windows clients sending trash.

To silence these messages, edit /etc/rsyslog.conf and add the line:

:msg, contains, "Invalid response packet from host" stop

right before the line:

*.*;auth,authpriv.none          -/var/log/syslog

and then restart rsyslogd with:

service rsyslog restart